Announcement

Collapse
No announcement yet.

Vise Swivel Base -- help

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Tony
    replied
    Now, how's it supposed to work?

    Hey Fellas.. am making progress on the cold saw. Will post pictures.
    Carld was correct, took some "smooth talking" to get it apart.

    So I got it apart, cleaned it up, painted / repaired /etc .. and put
    the table back together.

    I can't figure out how its supposed to work though and who did what
    to this poor thing in its lifetime. There's a "section" sketch below.. but
    basically the problem I'm running into is I can't figure out how the
    "double nut" lock at the bottom is supposed to work.

    The lock lever has about a 45degree throw.. so 1/4" turn on the through
    pin.

    Thing is, the saw swivel mount and the vise swivel mount could both turn
    180 degrees. If I loosen the lock lever, when I try to turn the saw or the
    vise, it "locks up" before i get 1/2 a turn around. it basically squeezes the
    nut again.. and i can't loosen more because i've run out of travel on my
    lock lever.

    If anyone could make any heads or tails of this i'd appreciate it:
    (ps.. i also found two pins drilled and hammered in place .. not sure if
    they're factory or not -- if I can figure out how this thing is SUPPOSED to
    work, I can figure out if I need the pins or not.)

    Leave a comment:


  • winchman
    replied
    Rather than take a chance breaking the casting with the BFH approach, how about drilling the bolt out from the bottom end? Then you can deal with whatever needs to be done to put it back together.

    I'm sure that will be easier than fixing a busted casting.

    Leave a comment:


  • Tony
    replied
    hahah.. thanks Carld ... it'll have to wait till morning.. but like I said,
    thought I'd check the group wisdom before going to the inevitable: the BFH.

    Worse comes to worse it won't be the first time I've had to weld something
    that wasn't meant to come out with a hammer.

    -Tony

    Leave a comment:


  • Carld
    replied
    Rather than repeat myself please read post #3.

    Leave a comment:


  • Tony
    replied
    Billy, haven't tried an impact gun -- i don't think its supposed to turn.. and
    i'm pretty sure its got to come out the top.

    It is meant to slide up and down though.. i mean thats how you lock the
    saw angles in.. so that seems to make sense. I think I just need a bigger hammer.

    Leave a comment:


  • BillDaCatt
    replied
    I could be wrong, but it looks like that bolt may have been there ever since the base was cast. This is quite possible when we consider that cast iron (gray iron) has a melting temperature about 250 -400 degrees(F) less than steel does. (alloys would play a significant role in the precise melting temp). If it was, you will have a very hard time getting that bolt out.

    Edit: I asked a dumb question here. I have withdrawn the question and the statement that followed it.

    Here is a better question. Have you tried using an air hammer/impact gun on that bolt?
    Last edited by BillDaCatt; 02-26-2010, 12:43 PM.

    Leave a comment:


  • Tony
    replied
    Also, I'm guessing there's got to be a square section (or a key) somewhere
    in there.. otherwise when you tighten the bolt under the table (with the
    long lever) -- wouldn't it potentially cause the saw and/or the vise to move
    away from the setting you want?

    Leave a comment:


  • Tony
    replied
    The through pin (that you see on the top) always stays still. Its one piece
    with the threaded rod under the table (or appears that way anyway!).

    Both the vise base and the saw support spin around this shaft.
    The thing that worries me is that there are strange steps / shoulder on the
    shaft hiding inside those swivel bases.

    The vise base can move about 90degrees (45 of each side of "square") --
    the saw support can swivel almost 180 degrees (90 each side of "square").

    I think there are some 'stops' molded into the cast iron base that control
    how far the vise and the saw can swivel -- but again, they might be on the
    shaft?.

    Kibby, does mcmaster stock that stuff?

    -Tony

    -Tony

    Leave a comment:


  • winchman
    replied
    Does the swivel base now move around the thru pin that stays still or around the bolt that you cannot remove?

    Leave a comment:


  • Carld
    replied
    It looks like the metal around the screw threads may be pushed into the threads. Have you put a nut on the stud and used a large brass drift and large hammer to change it's mind and come out?

    Leave a comment:


  • Kibby
    replied
    Use some of this on it.



    Leave a comment:


  • Tony
    started a topic Vise Swivel Base -- help

    Vise Swivel Base -- help

    Managed to sort out the electrical problems on the cold saw (some wires
    were shorting) -- heatshrink took care of that. Now I'm trying to get
    the saw apart for some cleanup and paint.

    I can't get the swivel vise off the darned thing! Have a look at these
    pics:







    Here's how I think it works.. but I don't want to be wrong and do
    more damange:



    I've beat the poop out of this thing and, although the hammer blows did loose'n the swivel base a bit, that bolt just ain't move'n. There aren't any
    other pins / screws / etc that I can see.

    Maybe not obvious? but there's a lever that comes out from under the
    saw table.. it swings maybe 10" left to right.. to the right, and you tighten the swivel base, to the left and you loose'n it.

    Should I just keep hammering away?
Working...
X